Pulverizing jaw crusher



i Aug. 27, 1935.

c. J. ZILLGITT PULVERIZING JAW CRUSHER 2 sheets-sheet 2 Filed DeC. ll,1933 Patented Aug. 27, 1935 UNITED STATES, PATENT; foFFicE; g f Y'2,012,799- H 7 APULVERI.zilver JAW {JRU.,S,H.E11` omnes 3.'.zi11gitt,Pasadena, Calif. Applicatiennecemher 11, maafserial 101.323,

` 16 Claims.

My invention relates to a pulverizing jaw Crusher that is especiallydesigned for crushing and pulverizing ore bearing rookt-and gravel andthe principal objects of my inventionlare, to' prievide ia relativelysimple, practical and inexpens sive apparatus that may be economicallyem ployed for theeomparati-vely rapid fcrushingand pulverizing ofvarious material and to .provide an apparatus wherein thepulverizingaction is ace complished by .the Combined reoiprocanngmovey ment. andjaw action of :a shoe .or plate that is positioned for operationinmediately adjacent :to a 'fixed plate or jaw. -A

A further object `of my invention lis; to provide in a machine ofthecharacter reierredto, amovable jaw or plate which during a part of itsoperation, moves `toward the fixed jaw .or plate so as to'function as afulorumed jaw in crushing material that is interposed between the twoIjaws or plates. f

Further objects of my' inventionxa're, to `provide simple and effectivemeans.A for controlling the movements of .the reciprocating iplateiwithrespect `to the fixed plate,to :provide a ypulvreriaer wherein thepulverizedmaterial, .when :reduced to the proper degree `ofpulverization, is .caused topass through screens .Withvwaterthatzissplashed upwardly from vthe pulverizing plates as a result of the`movement.ofthe Vreciprocating .plateend further, to provide ysimpleandeefoient means for regulating the feedofnmaterial.intoithe-chamher orpocket where the pulverizing action-'is accomplished.

yWith the foregoing .and .other ,obj ects :in view my inventionconsstsincertain novel features of construction andarrangements ofpartslthat will be hereinafter :more :fully 'described and claimed andillustrated inthe` accompanying drawingsin which: i

Figllis atop pla-n view ofmy improved-.pulverizing machine. Fig. 2 is avertical-longitudinal .seetionitaken on the line-2 2 of Fig. l.

Fig. 3 isl an enlargedvcrosssection taken onthe Fig. 4 is atop plan.View oftheireciprocatin-g platefor shoe.

Fig. 5 isan enlargedy detailsectionltaken. onthe line -5+15 ofFigQZ.

Referring by numerals to fthe 4aecfmopanying drawings: that 'illustratea -preferredeembodiment of my invention, l0 designates thefmainrbody ofthe lpulverizer which lis channeleshape 'in' 'Cross section withupstanding flanges -and the body member is mountedon :suitable :supportsIl |,-so

that it eee-unies an :angle of approximately 1ten or .fifteen degrees.with respect to a horizontal plane. The rear portion-,l 2 of this100.215. member 1.5 nent upwardzsopthat it oooupies, anangle of. `apeproximately fteen or twenty degrees.

. Arrangedv von the elevated end 0f. memberzl are hearingsA |3or a shaftMend. that portion of 4the y shaft between the bearings is -prQYdedWilJh.B crank 515.

\ Fly wheels ,li` are mounted 0n the shaftnutside the bearings 13 andone ,endo theshaftis eX.- tended in ordery to receive gearing .orgabel-.t Wheel thatis usedin drivingthepulverizer.V n

.Secured in any suitable manner, preferably fby means .of bolts ,to theupper face of' the lower portion of the channel-,shaped body memberlil.' between lthenange-s thereof, v,s/a fixed nulverizine plate I'I ofhard wear resisting 'material andthe .upperface of this Anlateanayille/either .plain 0r corrirgated..,v f. u 1; l f

'.Journalednn t .e crank l5, isoneendof. an arm or beam :L8 and:suitablyfseQured-On top of :the .forward and offthisbeam, isaslme 1.9.the upper face of .whichis formed Qn ian-irregular curveA with theorwardportion slightly -hieher than its 25 kpreferablyby means ofzboltsll. isaplate .2l and 36 formed integral with ,this'gplatefon :the .upper .Sidethereof. a pairioffspaeed rinsior lues 212,

These lues f or plates are spacedapart in perder' to .form aYohannel12.3 Alllllollfsll -Whih water may freely circulate While 4the,fnlllyv leer-is in operation.` v

Deteehably .secured-tothe underside Qflplatel,

aipiilverizins plate; Mofharclwear resistnama.- terial thatfoceuniesaposition-mmediatelyebove themed pulverizineplatel'l. y l

vThe portion 0f ville reeiproatne ,pulverf izineaplaie 2.4.5.iscurveclupwardly to aslightderf Varee as designated'byz-i25. y

Seuredtofand proietnaupwaldly vfrom porftions I0 .and Il2 ,ofthechannel.formingthemain body A:of v1,the pulverifzer arespaced transversewalls .112e and.26 andar-ranged betweenthe side edges-'of these wallsand thev upper edges of those portions of .the yflanges on the hodyllfbetween said walls, are seetionspi2'l of` .reticulated mae terialpreferably .woven wirepscreens of #small mes-h. n 1-Arrangledimmediately to ,thefrear of Vwall:.26, i is .a `,hopper 12.8?into which Ythe Lmaterial tolbe -pulverized is "edfsaid' hopperhavlng aninclined bottom and extending from the lower portion thereof inwardlyand downwardlybetween the screens 21, is a short chute 29, having a feedopening 30 that is formed directly above the inclined bottom ofhopper`28.

The ilow of material through opening 39 is controlled by a verticallyadjustable plate 3| that is arranged for sliding movement on the forwardend of the chute and connected to the upper end of this sliding plate isthe lower end of a threaded rod 32 thatv projects upwardly through aplate 33 and the latter being securedl to the upper edges of walls 25and 26. Y

A nut 34 is screw-seated control plate 3|. Y y

Arranged on the inclined-bottom of the hopper to the sides of theopening-3D, are vertically disposed plates 35'that conne `the materialthat discharges through the opening 30 and hinged to the bottom of thehopper between the lower portions of these plates, is a short plate 36that exitsforward limit of traVeLfengages ontop of the free end of plate36 `and* swings the same downward against the resistance oiered byspring 31, thereby' vibratingV said plate 36 and causing a portion ofthe lmaterial thatV has accumulated thereon to drop onto the forwardportion of the fixed pulverizing plate I1.

Formed through one or both of the upstanding flanges or body member I0,immediately above the forward end of plate I1, are cleanout openings 39Ythat are normally closedby screw plugs 46 and which plugs may bereadily removed lfrom time to time to clean out anyfslime or residuethat remains in the pulverizing chamber. Arranged beneath the lower endof body member I0 and the lower portionof `the up-turned end I2 thereof,is a transversely disposed launder 4I, into which the pulverizedmateriall passes after being- 'carried through the screens 21 at the'sides of the pulverizing chamber. Secured bybolts 42 to the upstandingflanges of body member I0, immediately adjacent to wall 25, is aninverted `U-shaped vframe 43 and projectinginwardlyfrom the upper edgesof the adjacent portions of the flanges of body member I6, arehorizontally disposed plates 44 thatare arranged to prevent water fromsplashing outwardlyV from the pulverizing chamber. Y

Secured to the lcentral portion of the horizontal member of ythis frame43, is `a bracket 45, through which passes the threaded upper-'portionof a rod 46, the same extending downwardly -into atube 41 and the lowerend of' this" tube is pivoted to beam I8, tothe rear of shoe I9.

Interposed between a head on the lower` end of rod 46 and the upper endof the tube, is an expansive spring 48 of such strength as tocounterbalance andv yieldingly support the weight of beam I8'and partscarried thereby. A nut 49 isV mounted on. the vthreaded portion of rod46 above the bracket 45 and provides means for adjusting the tension of'spring 48. Brackets 50 are mounted on-the side portions of body I0,adjacent to the bearings vI3 and pivon the threaded portion of rod 32and provides means for raising` and lowering said rod and the materialfeed otally mounted on said brackets are forwardly extending parallelarms 5I and journaled on a lock nuts 54, whereby said rods maybe raisedor lowered.

The lower portions of the threaded rods 53 that pass through the forwardends of arms 5I, are'reduced in diameter, as designated by 55, and

. formed at the upper ends of said reduced portions are shoulders 56,which limits the upward movement of the forward ends of said arms 5Irelative to said threaded rods.

Mounted on the intermediate portions of the threaded-rods 53, are nuts51, `and arranged on said rods and interposed between said n uts 51 andthe forward ends of arms 5I, are relatively heavy expansive springs 58.

By screwing the nuts 51 upwardly or downwardly on the threaded rods, thetension of springs 58 may be varied and the positions of said threadedrods relative to the xed frame 43 may be varied by screwing said rodsupwardly or downwardly through the upper portion of said frame.

After the rods 53 have been raised or low-ered they are retained in suchpositions by screwing the lock nuts 54 against the upper portion offrame 43.

Arranged on top of bodymember I, a short distance in front of thebearings I3, is a transversely disposed partition 59 and formed throughthe bottom of body member Il), immediately in front of this partition,are apertures 66. Thus any oil thatmay drip from the crank shaft bearingand passing downwardly through the upper portion of body memberII),`will drain through the openings 66 and thereby be prevented fromtraveling downward over the pulverizing plates and into the pulverizedmaterial that occupies the lower portion of the pulverizing chamber.

Arrangeda short distance to the rear of partition 59 is a transversepartition 6 I, that is spaced apart from the upper surface of bodymember I Il and while the pulverizer is in operation, water isdischarged onto the body member between the partitions 59 land 66 vandthis water passes through the space beneath partition 6I and flowsdownwardly over the pulverizing plates I1 and 24.

During the operation of my improved pulverizer material to be pulverizedis delivered into hopper 28 and Passes downwardly therethrough bygravity and such material passes through chute 29, through opening 36and thence between walls 35 onto the vibrating plate 36.

On each forward stroke of beam I 8, finger 38 strikes against the freeend of plate 36, thereby depressing the same slightly and discharging aportion o f the material from said plate onto the forward portion of thefixed pulverizing' plate I1.

As shaftV I4 is rotated, crank I5 imparts reciprocatory movement to beamI8 and after the same reciprocates, the shoe I 9 rides beneath roller 52that is normally forced downward to its limit of movement by the heavysprings 58.

The irregular curved upper surface of shoe I9 is substantially higher at,the forward end of said shoe than at the rear end and as a result ofthis ment.

throw and with the beam rso positioned crushing jaw 24 occupies aninclined position withv respect Y to the upper surface of plate I1 andduring'the movement of crank I4 from its lowermost point upward toa'sub'stantially horizontal` position, jaw

24'will be tilted downward onto .theface of plate Il, therebyperiorming'the functionsyof a jaw Crusher and at thev same time-said jaw 24 `willbemoving forwardly overplate I'I, thus crushingv and reducing theinterposed' material by a direct jaw action, together with a`reciprocating move- Thus the plate or iaw24will, during a portion of itsmovement, be moved directly toward the xed jaw or plate II, during whichmovement the beam carrying the movable body fulcrums on the during thelatter portion of said rearward stroke,

jaw 24 will move downward toward plate I1 as a result of the engagementof the relatively high forward portion of shoe I9 with roller 52.

During the operation of the pulverizer, water isA continuously deliveredinto the pulverizing chamber, such water flowing beneath partition 6 I,thence downward over both pulverizing plates and the material that ispulverized to such a degree of flneness as to pass through the screens21, will be carried upward and through said screens with the water thatis continuallyagitated and splashed by the movements .of thereciprocating pulverizing plate 2,4.`

All material discharging through the screens 27 willv pass into andthrough the launder 4I.

During operation, the spring 48 yieldingly supports the weight ofreciprocating beamV I8V and parts carried thereby and the upwardmovement of said beam is yieldingly resistedbysprings 58.

The shoulders 56 on the threaded rods 53 limit theupward movement of theroller carrying arms 52 and in the event that an uncrushable object suchas atool accidentally enters the pulverizer so astoexert abnormalpressure on the operating parts, the bolts 42 that connect frame 43 tothe body member I0, will beshearedgso as Ato permit the frame to moveupward without injury or breakage of any part of thev machine other thanthe sheared, which-may be readily' replaced.

To achieve best results inpulverizing ore bearing rock and gravel, thepulverizer should be operatedso'that the beam I8 makes upwards of threehundred strokes per minute.

The springs 58 yieldingly resist the upward movement of the rollercarrying arms 5| and such resistance is suicient to effect thepulveriz-` ing of the material between the jaws and vwhen the rollerlcarrying arms engage against the shoulders 56,'further upward movementof said arms and the movable jaw is stopped and when f which it isintended.

Itwill be-understood that minorchangesin-they size, form andconstruction offtheA various 4parts operate the machine as a dryyCrusher -and pulver- 'iz'er and when this is done the screens. -21 arevremoved or coveredA with imperforate platesand one or more aperturesare formed through member I'immediatelyto the rear of the fixed jaw.Thus the material that is crushed and pulverized will begraduallydrawnto the Vrear Vofplate I'I and said material will dischargethrough the openings -to therear of jaw I1 into a suitable receptacle. f

By varying the inclination .of member III while the machine isbeingfoperat'edas a dry. Crusher and pu1verize`rthe degree of neness towhich the 'material is crushed kandthe speedof thelAcrushingandpulverizingoperations may be readily controlled. i

veryeective in performing the functions for izing platecarriedtherebythe upper'surfaceof which shoe is concavelongitudinally and aspring f held roller., bearing.on concave upper surface.. of

ried by said-beam and'arranged abovesaidyflxed plate, a shoe .on thebeam above the 4pulverizing plate carried thereby the yupper surface ofwhich shoe is concave longitudinally, a spring held roller bearing onthe concave-upper surface of said shoe, means for feeding said-materialto be pulverized l, onto said fixed plateand screens arranged tothe.

sideslof said fixed plate. Y

3. In a pulverizingjaworusher, a body memabove said body member, apulverizing platecarber,.a pulverizing'platexed tosaid-body mem-V ber, abeam mounted for reciprocatory movement above said body member,a'pulverizingplate car-y ried by said .beam `and arranged above saidfixed plate, a shoe onl the beam'above the pulverizing platecarriedtherebyhe upper surface of which shoe is concave, lengthwise, larollerk bearing on the concave upper face of ls aid shoe, means foryieldingly resisting the upward movement` of said roller and adjustablemeans for `limitingthe upward movement of said roller.

4. In a pulverizingr jaw Crusher, abody member, a pulverizing platefixed to said body member, a .beam mounted' for' reciprocatory movementabovesaid bodypmernber',-` a pulverizing plate carried'by 'said beam'and arranged above saidxed plate, a shoe on the beam above `thepulverizing plate carried thereby, the'upper sur,- face of which shoeis'concave lengthwise, a roller bearing on theconcave upper face ofAsaid shoe, means for yieldingly resisting the upwardv movement of saidroller, adjustablemeans for'limiting i the upward Vmovement of .saidroller, meansfor delivering. material -to be pulverized onto said fixedplate and screens arrangedto the' sides of said `fixed plate. v

5. In a pulverizing jaw crusher,a body member, a pulverizing plate fixedto said .body-member, a crank shaft journaled on said body-member, abeam journaled on the crank of said shaft., a pulverizing .plate carriedby the free end of said beam and disposed abovethe fixed pulverizingplate, adjustable means for counterbalancing the weightof the free endVof said beam and the pulverizing plate carried thereby, arshoe ontop-of the free end of said beam the upper face ofl which shoe isconcave longitudinally and a spring held roller for .engaging theconcave upper surface of said shoe and resisting-the up-U ward movementof the free end of said beam.

6. In a pulverizing. jaw' crusher,a body member, a pulverizing platefixed to said body member, a crankshaft journaled on said bodymember, abeam journaled on the crank 'of said shaft,

`a pulverizing plate carried bythe free end of said beam and 4disposedabove the fixedepulverizingvplate, adjustable means for counterbalancingthe weight of the free end of lsaid beam andthe 'pulverizing platecarried thereby, a shoe on top of the free end of said beam the upperfaceV a shoe arranged above said reciprocating plate,

the upper surface of whichvshoe is concave longitudinally and springheldmeans'bearinp,l on the concave ,upper surface of said* shoe foryieldingly resisting the upward movements of said shoe and v.

reciprocating plate. y Y

8. In a pulverizing jaw `crusher,'a fixed pulverizing plate, apulverizing plate arranged for reciprocatoryfmovement .above said vfixedplate, a shoe arranged above said reciprocating plate. the upper surfaceof whichr shoe is-concave longitudinally, spring held means bearing onthe ccncave upper surface of said .shoe foryieldingly resisting theupward movements of said shoe and reciprocating plate andmeans'forsupporting said reciprocating plate and shoe and maintainingthe latterin engagementwith said roller.

9. In ay pulverizing jaw crusher, a fixed pulverizing plate, `apulverizing plate arranged for re'- ciprocatory Amovement yabove saidfixed plate, ka shoe arranged above said reciprocating plate, the

upper surface of which shoe is curved lengthwise, f

spring held means bearing on said shoe for yieldingly resisting theupward movements of said shoe and reciprocating plate,j means for sup-jporting said reciprocating plate and shoe and maintaining the Vlatterin'v engagement with said roller, means for delivering material to .-bepulverized onto said fixed pulverizing plate and screens arranged to thesides of said fixed pul-V verizing plate.

' 10. In a pulverizing jay'v'crusher, a bodymember, a pulverizing platefixed to said body member, a beam arranged for reciprocatorymovementabove saidV body member, means for imparting reciprocatory` movement .tosaid beam, a pulverizing plate carried by the freefend of said beam andarranged above said fixed pulverizing plate,

a shoe mounted on the free end of saidy beam,`

said shoe having a curved upper surface, means 'for counterbalancing theweight of the free end of said beam and maintaining same in operativeposition above the fixed pulverizing plate, a. pair of arms pivoted atonel end to said bodyA member, a rollervcarried by the free ends of saidarms, which roller engages the curved upper face of said shoe,adjustable means for yieldingly resisting the vupward movement of thefree ends of said arms and said roller and adjustable means for limitingthe upward lmovement of the free ends of said arms and roller.

11'. In a pulverizing 'jaw crusher, a body memer, a pulverizing platefixed to said body member, a beam arranged for reciprocatory movementabove said body member, means for imparting reciprocatory movement tosaidbeam, a pulverizing plate'carried by the free end of said beam andarranged above said fixed pulverizing plate, a shoe mounted on the freeend of said beam, said'shoe having a curved` upper surface, means forcounterbalancing Vthe weight of the free'end of said beam andmaintaining same in operative position above the fixed pulverizingplate, a pair of arms pivoted at one end to said body member, a rollercar-'- rledby the free endsr of said arms, which roller engages thecurved upper face of said shoe, ad-

justable means for yieldingly resisting the upward movement of the freeends of said arms and said roller, adjustable meansl for limiting theupward movement of the free ends of said arms and roller, means fordelivering material to be pul- Vverized onto said fixed pulverizing.plate and screens arranged at the sides of said xed pulverizing plate. 1

l2. In a pulverizing jaw Crusher, a fixed pulverizing plate, a beam,means forsimultaneously reciprocating and tilting said beam, a jawcarried by sad beam the upper surface of which beamis concavelongitudinally and disposed above said fixed plate, a shoe carried bysaid beam and a roller engaging the concave upper surface of saidshoeand providing a fulcrum for the beam Aduring its tilting movement.` y13. In a pulverizing jaw Crusher, a fixed pulver- :'zing plate, apulverizing plate arranged for reciprocatory movement above said fixedplate, a

shoe .positionedabove said reciprocating plate, the upper surface ofwhich shoe is concave 1ongitudinally, a roller supported for Verticalmovement and. bearing on the concave surface of said shoe, means foryieldingly resisting the upwardmovement of said roller and means forlimiting the upward vmovement of said roller.

. 14E-In a pulverizing'jawicrusher, a fixed pulverizing plate, apulverizing plate arranged for reciprocatory movement above saidflxed'plate, a shoepositioned above said reciprocating plate, the uppersurface vof which shoe is concave longitudinally, a 'roller supportedfor vertical move- `mentand bearing on the concave surface of saidyshoe, means for yieldingly resisting the upward movement of said roller,means for limiting the upward movement of said roller and means foryieldingly raising said shoe and maintaining the same in contactwithsaid roller.

15. In a pulverizing jaw crusher, a fixed pulverizing plate, apulverizing plate arranged for reciprocatory movement above said fixedplate, a shoe carried by and positioned above said reciprocating plate,the upper surface of which shoe is concave longitudinally, spring heldmeans bearing on the concave surface of said shoe for yieldinglyresisting the upward movements of said shoe and reciprocating plate andmeans for limiting the upward movement of said spring held means.

16. In a pulverizing jaw Crusher, a fixed pulverizing plate, apulverizing plate arranged for reciprocatory movement above said fixedplate, a f

shoe carried by and positioned above said re- 10 ciprocating plate, theupper surface of which shoe ingly resisting the upward movements of`said shoe and reciprocating plate, means for limiting the upwardmovement' of said spring held means and yieldable means for'maintainingsaidA reciprocating plate in engagement with said spring held means.

CHARLES J. ZILLGITT. 1o

